Update Group21_Lab06_Task1/main.c

Add Delay Function

Group21_Lab06_Task1/main.c

@@ -39,3 +39,12 @@ void systick_setting(void)
     STCTRL  |= (CLKINT | ENABLE | INTEN);                       // Set internal clock, enable the timer
     STCURRENT = 0;                                              // Clear STCURRENT value
 }
+
+void delay(int us)                              // DEFINING DELAY FUNCTION
+{
+    STRELOAD = SYSTICK_RELOAD_VALUE(us);        // RELOAD VALUE FOR REQUIRED DELAY
+    STCURRENT = 0;                              // Clear STCURRENT
+    STCTRL |= (1 << 0) | (1 << 2);              // Enable SysTick
+    while ((STCTRL & (1 << 16)) == 0);          // Wait until flag is set
+    STCTRL &= 0x0;                              // Stop the timer
+}